JULIAN WYNOLA, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044418) JULIAN WYNOLA
From Year=1949 To Year=1988
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	183	197	231	330	495	710	979	982	809	583	328	225	6051
40 S	183	379	610	941	1436	2146	3125	4107	4915	5499	5826	6051	6051
45 M	84	97	118	199	343	560	824	827	659	430	198	116	4454
45 S	84	181	298	497	840	1401	2225	3051	3710	4140	4338	4454	4454
50 M	30	38	47	99	208	413	669	672	509	284	98	44	3110
50 S	30	67	114	213	421	834	1503	2174	2683	2967	3065	3110	3110
55 M	7	11	12	38	107	276	514	517	363	159	36	12	2052
55 S	7	18	30	68	175	451	965	1482	1845	2004	2041	2052	2052
60 M	1	2	2	11	45	162	363	366	231	73	8	2	1266
60 S	1	3	5	16	61	223	585	952	1183	1256	1264	1266	1266

Corn Growing Degree Days
50 M	110	129	160	229	331	461	622	627	520	383	209	134	3917
50 S	110	239	400	629	960	1421	2044	2671	3191	3574	3783	3917	3917

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu